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	hartrees
Energy at 0K	-76.424624
Energy at 298.15K
Nuclear repulsion energy

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-0.480
C2	0.000	0.000	0.738
H3	0.000	0.000	-1.548

	C1	C2	H3
C1		1.2184	1.0680
C2	1.2184		2.2864
H3	1.0680	2.2864

All results from a given calculation for C₂H (Ethynyl radical)

using model chemistry: CCSD(T)/6-311G**

States and conformations

	Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for C2H (Ethynyl radical)

using model chemistry: CCSD(T)/6-311G**

States and conformations

All results from a given calculation for C₂H (Ethynyl radical)